Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1111/ele.12933 |
Intragroup competition predicts individual foraging specialisation in a group-living mammal | |
Sheppard, Catherine E.1; Inger, Richard2; McDonald, Robbie A.2; Barker, Sam2; Jackson, Andrew L.3; Thompson, Faye J.1; Vitikainen, Emma I. K.1,4; Cant, Michael A.1; Marshall, Harry H.1,5 | |
2018-05-01 | |
发表期刊 | ECOLOGY LETTERS
![]() |
ISSN | 1461-023X |
EISSN | 1461-0248 |
出版年 | 2018 |
卷号 | 21期号:5页码:665-673 |
文章类型 | Article |
语种 | 英语 |
国家 | England; Ireland; Finland |
英文摘要 | Individual foraging specialisation has important ecological implications, but its causes in group-living species are unclear. One of the major consequences of group living is increased intragroup competition for resources. Foraging theory predicts that with increased competition, individuals should add new prey items to their diet, widening their foraging niche (optimal foraging hypothesis'). However, classic competition theory suggests the opposite: that increased competition leads to niche partitioning and greater individual foraging specialisation (niche partitioning hypothesis'). We tested these opposing predictions in wild, group-living banded mongooses (Mungos mungo), using stable isotope analysis of banded mongoose whiskers to quantify individual and group foraging niche. Individual foraging niche size declined with increasing group size, despite all groups having a similar overall niche size. Our findings support the prediction that competition promotes niche partitioning within social groups and suggest that individual foraging specialisation may play an important role in the formation of stable social groupings. |
英文关键词 | Banded mongoose competition foraging behaviour foraging niche group-living Mungos mungo social group specialisation stable isotope |
领域 | 资源环境 |
收录类别 | SCI-E |
WOS记录号 | WOS:000430120400007 |
WOS关键词 | WILD BANDED MONGOOSES ; STABLE-ISOTOPE ANALYSIS ; MIXED-EFFECTS MODELS ; INTRASPECIFIC COMPETITION ; SEA OTTERS ; DIET SPECIALIZATION ; NICHE WIDTH ; MELES-MELES ; ECOLOGY ; POPULATION |
WOS类目 | Ecology |
WOS研究方向 | Environmental Sciences & Ecology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/31254 |
专题 | 资源环境科学 |
作者单位 | 1.Univ Exeter, Ctr Ecol & Conservat, Penryn Campus, Penryn TR10 9FE, Cornwall, England; 2.Univ Exeter, Environm & Sustainabil Inst, Penryn Campus, Penryn TR10 9FE, Cornwall, England; 3.Trinity Coll Dublin, Sch Nat Sci, Dept Zool, Dublin 2, Ireland; 4.Univ Helsinki, Dept Biosci, POB 65,Viikinkaari 1, FI-00014 Helsinki, Finland; 5.Univ Roehampton, Ctr Res Ecol Evolut & Behav, London SW15 4JD, England |
推荐引用方式 GB/T 7714 | Sheppard, Catherine E.,Inger, Richard,McDonald, Robbie A.,et al. Intragroup competition predicts individual foraging specialisation in a group-living mammal[J]. ECOLOGY LETTERS,2018,21(5):665-673. |
APA | Sheppard, Catherine E..,Inger, Richard.,McDonald, Robbie A..,Barker, Sam.,Jackson, Andrew L..,...&Marshall, Harry H..(2018).Intragroup competition predicts individual foraging specialisation in a group-living mammal.ECOLOGY LETTERS,21(5),665-673. |
MLA | Sheppard, Catherine E.,et al."Intragroup competition predicts individual foraging specialisation in a group-living mammal".ECOLOGY LETTERS 21.5(2018):665-673. |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论